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Topic: how can generate random integer numbers?
Replies: 8   Last Post: Mar 19, 2013 6:02 PM

 Messages: [ Previous | Next ]
 Nasser Abbasi Posts: 6,677 Registered: 2/7/05
Re: how can generate random integer numbers?
Posted: Nov 17, 2005 5:06 PM

"emanuele" <emanuelemignosa@yahoo.it> wrote in message
news:ef1bf39.-1@webx.raydaftYaTP...
> Hi all
> how can generate random integer numbers?
>

First you need to decide on the range of random numbers. Then use
rand(1) to generate and floating random number between 0 and 1, then
map the generated number to the range you want, and then chop of the
fractional part.

for example, if you want a random interger between 0 and 100, then
something like could be a solution

>> round(rand(1)*100)

ans =

48

if you want random intergers between 0 and 1000, then

>> round(rand(1)*1000)

etc..

if you want a random number between values other than 0 and some
positive upper limit, then you need to use a slightly more advanced
maping than the above. But the idea is the same. You use the random
number generated by rand(1) and map that to whatever you want.

Nasser

Date Subject Author
11/17/05 Emanuele
11/17/05 Nasser Abbasi
11/17/05 Roger Stafford
11/17/05 Subhasri krishnan
11/17/05 Ken Campbell
3/19/13 Francesco Perrone
3/19/13 Steven Lord
3/19/13 Peter Perkins